we don't use them with disabled. we train them and then train them additional to work with all different age groups and people. >> to some people, and we have seen this with children, it brings a sense of calmness in the time of confusion during this period. to some it helps them process their grief. they will start crying and they will hug the dog. and to some children they will come up sad and they'll walk away happy. >> well, the u.s. postal service has dedicated a post office box to newtown so people around the world can send their con dole lesses. for the complete address log on to wjz adam and click on link to numbers. >>> still to come tonight on wjz's eyewitness news, how head coach john harbaugh is dealing with unfamiliar territory. a three-game losing streak ,,,,, >>> hopefully, the ravens suffer amnesia to help put that loss to denver behind them and focus on a visit from the defending super bowl champions on sunday. more on how head coach john harbaugh is dealing with a three-game losing streak. >> not de